Home / 3,101.95-4,281.42-1,776.41

Finding the Fourth Proportional to 3,101.95, 4,281.42 and 1,776.41

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Solution

The fourth proportional to 3,101.95, 4,281.42 and 1,776.41 is: 2,451.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.95 : 4,281.42 = 1,776.41 : x
  2. Step 2: Convert to fraction form
    3,101.95/4,281.42 = 1,776.41/x
  3. Step 3: Cross multiply
    3,101.95x = 4,281.42 × 1,776.41
  4. Step 4: Simplify right side
    3,101.95x = 7,605,557.30
  5. Step 5: Solve for x
    x = 7,605,557.30/3,101.95
  6. Step 6: Final answer
    x = 2,451.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.